Fix missing close paren

git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@7176 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd

xCAT-server/lib/xcat/plugins/esx.pm

@@ -2923,7 +2923,7 @@ sub  makecustomizedmod {
         my $umask = umask(0077);#don't remember if dropbear is picky, but just in case
         mkpath($tempdir."/.ssh";
         copy("/root/.ssh/id_rsa.pub",$tempdir."/.ssh/authorized_keys");
-        umask($umask;
+        umask($umask);
     }
     my $tfile;
     mkpath($tempdir."/var/run/vmware");